江西宜黄县新源铁矿尾矿库稳定性分析

通过对江西宜黄县新源铁矿尾矿库的工程地质勘察,进行了钻孔揭示及大量钻孔原状土样的试验,对尾矿库作了稳定性分析,以便安排尾矿排放和采取安全营运措施。勘察结果认为,尾矿坝已运行多年,未见有塌陷和异常现象,质量应属良好,但尾矿坝坝顶标高已接近最终设计标高,有可能失稳。尾矿库稳定性及扩容的可行性必须经设计论证。并提出了各类沉积尾矿的物理力学参数建议值。

Analysis of the stability of the Xinyuan iron tailing pond in Yihuang County, Jiangxi

Through the drilling test and lots of experiment on original soil samples from the drill hole during the engineering geological reconissance of the Xinyuan iron tailing pond in Yihuang County, Jiangxi Province, the stability of the tailing pond is analyzed, so that the discharge of the tailing can be well arranged and the safety operation will be properly adopted. The exploratory conclusion shows that the tailing dam has been operated for many years yet there is no subsidence or any anomaly which indicates a good quality of it, but the elevation of the top tailing dam is approaching the final designing value, which will probably induce the dam lose its stability. The stability of the tailing pond and the feasibility of the expansion of its volume must be demonstrated on the designing. Additionally, the suggesting physical mechanical parameters of all kinds of sedimentary tailing are proposed.